US3385311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic flow divider
Assignee: Fawick Corp
•
Filing: 1965-12-22
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Granted: 1968-05-28
•
Expires: 1985-12-22
Abstract
No abstract record available.
Inventors
- 👤 John D Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:18
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/022; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2521; Y10T137/2524
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A FLOW DIVIDER COMPRISING A VALVE BODY HAVING AN INLET PASSAGE AND SEPARATE CONTROLLED FLOW AND EXCESS FLOW OUTLET PASSAGES, AN ORIFICE DEVICE HAVING A FLOW RESTRICTION THEREIN AND ADJUSTABLY MOUNTED IN SAID BODY BETWEEN SAID INLET PASSAGE AND SAID CONTROLLED FLOW OUTLET PASSAGE, SAID ORIFICE DEVICE BEING MOVABLE TO A CLOSED POSITION TO SHUT OFF FLUID FLOW TO SAID CONTROLLED FLOW OUTLET PASSAGE, AND MOVABLE VALVE MEANS IN SAID BODY RESPONSIVE TO THE PRESSURE DIFFERENTIAL ACROSS SAID FLOW RESTRICTION TO CONTROL FLUID FLOW TO SAID EXCESS FLOW OUTLET PASSAGE, THE IMPROVEMENT WHICH COMPRISES MEANS DEFINING A DRAIN PORT IN SAID VALVE BODY, AND MEANS FOR CONNECTING SAID CONTROLLED FLOW OUTLET PASSAGE TO SAID DRAIN PORT WHEN SAID ORIFICE DEVICE IS POSITIONED CLOSED.
Claim 2
Dependent Claim
124 words
IN A FLOW DIVIDER COMPRISING A VALVE BODY HAVING AN INLET PASSAGE AND SEPARATE CONTROLLED FLOW AND EXCESS FLOW OUTLET PASSAGES, AN ORIFICE DEVICE HAVING A FLOW RESTRICTION THEREIN AND ADJUSTABLY MOUNTED IN SAID BODY BETWEEN SAID INLET PASSAGE AND SAID CONTROLLED FLOW OUTLET PASSAGE, SAID ORIFICE DEVICE BEING MOVABLE TO A CLOSED POSITION TO SHUT OFF FLUID FLOW TO SAID CONTROLLED FLOW OUTLET PASSAGE, AND MOVABLE VALVE MEANS IN SAID BODY RESPONSIVE TO THE PRESSURE DIFFERENTIAL ACROSS SAID FLOW RESTRICTION TO CONTROL FLUID FLOW TO SAID EXCESS FLOW OUTLET PASSAGE, THE IMPROVEMENT WHICH COMPRISES MEANS DEFINING A DRAIN PORT IN SAID VALVE BODY, AND MEANS FOR CONNECTING SAID CONTROLLED FLOW OUTLET PASSAGE TO SAID DRAIN PORT WHEN SAID ORIFICE DEVICE IS POSITIONED CLOSED.
References Cited (Backward Citations)
US3234957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |